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Block 1, of mass = 9.90 , moves along a frictionless air track with speed = 27.0 . It collides with block 2, of mass = 49.0 , which was initially at rest. The blocks stick together after the collision. Determine the magnitude of the total initial momentum of the two-block system. Find , the magnitude of the final velocity of the two-block system. What is the change in the system's kinetic energy due to the collision?.

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